WHO khẳng định virus SARS-CoV-2 “có nguồn gốc tự nhiên”
VOV.VN - Tổ chức Y tế thế giới (WHO) ngày 3/5 tiếp tục khẳng định, virus SARS-CoV-2 gây bệnh viêm đường hô hấp cấp Covid-19 có nguồn gốc tự nhiên.
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